Ro-vibrational Spectroscopy Of Linear C3h+

Schmid, Philipp C.

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https://hdl.handle.net/2142/116842 Copy

Description

Title

Ro-vibrational Spectroscopy Of Linear C3h+

Author(s)

Schmid, Philipp C.

Contributor(s)

• Schlemmer, Stephan
• Asvany, Oskar
• Thorwirth, Sven
• Salomon, Thomas

Issue Date

2022-06-22

Keyword(s)

Ions

Abstract

The C$_{3}$H$^{+}$ ion has been identified as an important reaction intermediate in the carbon chemistry network in the interstellar medium and was recently detected via its rotational lines\footnote{J. Pety et al., A$\&$A 548(2012)A68., B. McGuire et al., Ap. J. 774(2013)56.}. Laboratory measurements on the rotational spectrum of linear C$_{3}$H$^{+}$ provided accurate spectroscopic parameters for the vibrational ground state\footnote{S. Br\"unken et al., Ap. J. Lett. 783(2014)L4.}. In addition, vibrational pre-dissociation spectroscopy of the linear C$_{3}$H$^{+}$-Ne complex offered first insights on the vibrational band positions of this molecule\footnote{S. Br\"unken et al., J. Phys. Chem. A 123(2019)8053.}.\\ % Here, we report on the first infrared study of C$_3$H$^+$ at high spectral resolution that was targeted at the C$-$H stretching mode $\nu_1$ located around 3170 cm$^{-1}$. The experiment was performed in our cryogenic multipole 22-pole ion trap instrument LIRtrap. In addition to the vibrational fundamental, the associated $\nu_1+\nu_{5}$ $\leftarrow$ $\nu_{5}$ hot band originating from the energetically lowest bending mode could be detected. Both spectra are in good agreement with estimates based on previous quantum-chemical calcultions and low-resolution measurements.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Handle URL

https://hdl.handle.net/2142/116842

DOI

https://doi.org/10.15278/isms.2022.WG05

Copyright and License Information

Copyright 2022 held by the authors

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